Results 31 to 40 of about 898,493 (283)

Mechanisms of Opsin Activation [PDF]

Journal of Biological Chemistry, 1996
Rhodopsin is constrained in an inactive conformation by interactions with 11-cis-retinal including formation of a protonated Schiff base with Lys296. Upon photoisomerization, major structural rearrangements that involve protonation of the active site Glu113 and cytoplasmic acidic residues, including Glu134, lead to the formation of the active form of ...
J, Buczyłko, J C, Saari, R K, Crouch, K, Palczewski   +3 more
openaire   +2 more sources

Infant cortex responds to other humans from shortly after birth [PDF]

, 2013
A significant feature of the adult human brain is its ability to selectively process information about conspecifics. Much debate has centred on whether this specialization is primarily a result of phylogenetic adaptation, or whether the brain acquires ...
D Maurer, D Maurer, DE Mitchell, DT Delpy, F Fabbri, G Csibra, HH Jasper, I Gauthier, I Wartenburger, JJ Bolhuis, JT Klein, KA Pelphrey, L Brothers, MA Franceschini, MH Johnson, MH Johnson, N Kanwisher, O Pascalis, S Lloyd-Fox, S Lloyd-Fox, S Lloyd-Fox, S Lloyd-Fox, S Shultz, SP Koch, T Allison, T Grossmann, T Grossmann, TM Wright, Y Fukui, Y Sugita   +29 more
core   +1 more source

Mechanism of charity activity [PDF]

Actual Problems of Economics and Law, 2015
Objective: to establish the essential properties of the mechanism of charitable activities and to formulate the concept of "mechanism of charitable activity".Methods: the objective of the study is achieved using the complex of methods, which are based on the interaction of dialectical and metaphysi- cal analysis, the epistemological properties of which
R. B. Golovkin, V. I. Zhuravlev
openaire   +2 more sources

Increasing β-catenin/Wnt3A activity levels drive mechanical strain-induced cell cycle progression through mitosis. [PDF]

, 2016
Mechanical force and Wnt signaling activate β-catenin-mediated transcription to promote proliferation and tissue expansion. However, it is unknown whether mechanical force and Wnt signaling act independently or synergize to activate β-catenin signaling ...
Benham-Pyle, Blair W, Hart, Kevin C, Nelson, William James, Pruitt, Beth L, Sim, Joo Yong   +4 more
core   +2 more sources

Mechanics of active surfaces [PDF]

Physical Review E, 2017
We derive a fully covariant theory of the mechanics of active surfaces. This theory provides a framework for the study of active biological or chemical processes at surfaces, such as the cell cortex, the mechanics of epithelial tissues, or reconstituted active systems on surfaces.
Salbreux, G., Jülicher, F.
openaire   +4 more sources

Mathematical modeling of the mechanical characteristic of the activated PTFE-matrix using the method of planning the experiment [PDF]

Журнал інженерних наук, 2018
In this paper, the influence of the parameters of the technological process of mechanical activation on the physical characteristics of the polytetrafluoroethylene (PTFE) matrix is investigated.
Bilous O. A., Hovorun T. P., Berladir K. V., Vorobiov S. I., Simkulet V. V.   +4 more
doaj   +1 more source

Effect of La3+ Modification on the Electrochemical Performance of Na3V2(PO4)2F3

Batteries, 2018
La3+ modification of Na3V2(PO4)2F3 was performed by the direct mechanochemically assisted solid-state synthesis of the Na3V2−xLax(PO4)2F3 compositions, and by the LaPO4 coating of the as-prepared Na3V2(PO4)2F3 via the precipitation method.
Nina V. Kosova, Daria O. Rezepova, Nicolas Montroussier   +2 more
doaj   +1 more source

Mechanical activation of vinculin binding to talin locks talin in an unfolded conformation [PDF]

, 2014
The force-dependent interaction between talin and vinculin plays a crucial role in the initiation and growth of focal adhesions. Here we use magnetic tweezers to characterise the mechano-sensitive compact N-terminal region of the talin rod, and show that
A Banno, A Carisey, A Del Rio, A Kishino, AD Bershadsky, AR Gingras, BD Hoffman, BT Goult, BT Goult, C Ciobanasu, C Grashoff, E Goksoy, F Margadant, GCK Roberts, H Chen, H Chen, H Chen, H Fu, H Hirata, H-S Lee, H-S Lee, J Han, JD Humphries, NJ Anthis, PR Elliott, PRJ Bois, PRJ Bois, SE Lee, SJ Ellis, T Wieprecht, TJ Proszynski, V Vogel, Y Gao, Y Sawada, Y Sawada   +34 more
core   +2 more sources

Activity-dependent glassy cell mechanics I : Mechanical properties measured with active microrheology

Biophysical Journal, 2022
AbstractActive microrheology was conducted in living cells by applying an optical-trapping force to vigorously-fluctuating tracer beads with feedback-tracking technology. The complex shear viscoelastic modulusG(ω) =G′(ω) –iG″(ω) was measured in HeLa cells in an epithelial-like confluent monolayer.
H. Ebata, K. Umeda, K. Nishizawa, W. Nagao, S. Inokuchi, Y. Sugino, T. Miyamoto, D. Mizuno   +7 more
openaire   +2 more sources

Fast Compact Laser Shutter Using a Direct Current Motor and 3D Printing [PDF]

, 2015
We present a mechanical laser shutter design that utilizes a DC electric motor to rotate a blade which blocks and unblocks a light beam. The blade and the main body of the shutter are modeled with computer aided design (CAD) and are produced by 3D ...
Braverman, Boris, Kawasaki, Akio, Vuletić, Vladan, Zhang, Grace H.   +3 more
core   +2 more sources